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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001181431-07-068461.txt : 20071113
<SEC-HEADER>0001181431-07-068461.hdr.sgml : 20071112
<ACCEPTANCE-DATETIME>20071113155225
ACCESSION NUMBER:		0001181431-07-068461
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071109
FILED AS OF DATE:		20071113
DATE AS OF CHANGE:		20071113

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DUCOMMUN INC /DE/
		CENTRAL INDEX KEY:			0000030305
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC [3728]
		IRS NUMBER:				950693330
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		23301 WILMINGTON AVE.
		CITY:			CARSON
		STATE:			CA
		ZIP:			90745
		BUSINESS PHONE:		3105137280

	MAIL ADDRESS:	
		STREET 1:		23301 WILMINGTON AVE.
		CITY:			CARSON
		STATE:			CA
		ZIP:			90745

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REARDON ANTHONY J
		CENTRAL INDEX KEY:			0001224732

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08174
		FILM NUMBER:		071238079

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		3103805374

	MAIL ADDRESS:	
		STREET 1:		DUCOMMUN AEROSTRUCTURES
		STREET 2:		PO BOX 2310
		CITY:			GARDENA
		STATE:			CA
		ZIP:			90247-0310
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd178302.xml
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

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    <periodOfReport>2007-11-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000030305</issuerCik>
        <issuerName>DUCOMMUN INC /DE/</issuerName>
        <issuerTradingSymbol>DCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001224732</rptOwnerCik>
            <rptOwnerName>REARDON ANTHONY J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>DUCOMMUN AEROSTRUCTURES</rptOwnerStreet1>
            <rptOwnerStreet2>268 E. GARDENA BOULEVARD</rptOwnerStreet2>
            <rptOwnerCity>GARDENA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90248-2814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Pres., Ducommun AeroStructures</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <transactionCode>M</transactionCode>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>600</value>
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                <transactionPricePerShare>
                    <value>38.83</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Option - Right to Buy</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>10.02</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-11-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-03-25</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-03-24</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Option - Right to Buy</value>
                <footnoteId id="F1"/>
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            <conversionOrExercisePrice>
                <value>15.80</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-11-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-07-17</value>
            </exerciseDate>
            <expirationDate>
                <value>2010-07-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option represents the right to purchase common stock granted under the Ducommun Incorporated Employee Stock Option Plans, which are Rule 16b-3 plans.</footnote>
        <footnote id="F2">The option vested on March 25, 2005 as to 1,250 shares and on March 25, 2006 as to 3,750 shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Anthony J. Reardon</signatureName>
        <signatureDate>2007-11-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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